Prepaid Extensions to Remote Authentication Dial-In User Service (RADIUS)
draft-lior-radius-prepaid-extensions-22

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Network Working Group                                            A. Lior
Internet-Draft                                               Independent
Intended status: Informational                                 P. Yegani
Expires: August 29, 2013                                         Juniper
                                                            K. Chowdhury
                                               Radio Mobile Access, Inc.
                                                           H. Tschofenig
                                                  Nokia Siemens Networks
                                                           A. Pashalidis
                                                                     KUL
                                                       February 25, 2013

    Prepaid Extensions to Remote Authentication Dial-In User Service
                                (RADIUS)
              draft-lior-radius-prepaid-extensions-22.txt

Abstract

   This document specifies an extension to the Remote Authentication
   Dial-In User Service (RADIUS) protocol that enables service providers
   to charge for prepaid services.  The supported charging models
   supported are volume-based, duration-based, and based on one-time
   events.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on August 29, 2013.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal

Lior, et al.             Expires August 29, 2013                [Page 1]
Internet-Draft        Prepaid Extentions for RADIUS        February 2013

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  5
     1.2.  Overview . . . . . . . . . . . . . . . . . . . . . . . . .  7
       1.2.1.  Architectural Model  . . . . . . . . . . . . . . . . .  7
       1.2.2.  Motivation . . . . . . . . . . . . . . . . . . . . . .  9
     1.3.  Assumptions  . . . . . . . . . . . . . . . . . . . . . . . 11
     1.4.  Example Use Case . . . . . . . . . . . . . . . . . . . . . 11
   2.  Supported Features . . . . . . . . . . . . . . . . . . . . . . 14
     2.1.  Services and Quotas  . . . . . . . . . . . . . . . . . . . 14
     2.2.  Resource Pools . . . . . . . . . . . . . . . . . . . . . . 14
     2.3.  Rating Groups  . . . . . . . . . . . . . . . . . . . . . . 16
     2.4.  Tariff Switching . . . . . . . . . . . . . . . . . . . . . 17
     2.5.  Support for Roaming  . . . . . . . . . . . . . . . . . . . 18
     2.6.  Dynamic Termination  . . . . . . . . . . . . . . . . . . . 19
     2.7.  One Time Event . . . . . . . . . . . . . . . . . . . . . . 19
       2.7.1.  One-Time Charging  . . . . . . . . . . . . . . . . . . 19
       2.7.2.  Resource Consumption Query . . . . . . . . . . . . . . 20
       2.7.3.  Service Price Enquiry  . . . . . . . . . . . . . . . . 20
       2.7.4.  Balance Check  . . . . . . . . . . . . . . . . . . . . 21
       2.7.5.  Refund . . . . . . . . . . . . . . . . . . . . . . . . 21
   3.  Operations . . . . . . . . . . . . . . . . . . . . . . . . . . 22
     3.1.  Capability Discovery . . . . . . . . . . . . . . . . . . . 22
     3.2.  Authentication and Authorization Operation . . . . . . . . 22
     3.3.  Session Start Operation  . . . . . . . . . . . . . . . . . 24
     3.4.  Mid-Session Operation  . . . . . . . . . . . . . . . . . . 24
     3.5.  Dynamic Operations . . . . . . . . . . . . . . . . . . . . 26
       3.5.1.  Unsolicited Session Termination Operation  . . . . . . 26
       3.5.2.  Unsolicited Change of Authorization Operation  . . . . 26
     3.6.  Termination Operation  . . . . . . . . . . . . . . . . . . 27
     3.7.  Mobile IP Operations . . . . . . . . . . . . . . . . . . . 27